Thunderbolt to Gigabit Ethernet Adapter

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Product Information

The Apple Thunderbolt to Gigabit Ethernet Adapter lets you easily connect to a high-performance Gigabit Ethernet network. Small and compact, it connects to the Thunderbolt port on your Mac computer and provides an RJ-45 port that supports 10/100/1000BASE-T networks.

Works great on Retina MBP

Exceptional with the 2011 Macbook Air 13

5.0 out of 5 stars

Installed the new Driver / Thunderbolt 1.2 Update from Software Update, plugged it in, and zoom. Works great, no longer wasting a
Installed the new Driver / Thunderbolt 1.2 Update from Software Update, plugged it in, and zoom. Works great, no longer wasting a USB port, and its super fast! Will be perfect in those hotels with no WiFi. No compatibility issues with my 2011 MBA 13 inch I bought last year.
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Written by Sayantan N from White Plains

Jun 13, 2012

474 of 545 people found this useful

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Exceptional with the 2011 Macbook Air 13

Works if you can find the Thunderbolt 1.2 update

4.0 out of 5 stars

This adapter requires an update to the AppleBCM5701Ethernet plugin to work. That update was present in the thunderbolt software u
This adapter requires an update to the AppleBCM5701Ethernet plugin to work. That update was present in the thunderbolt software update 1.2 package. Said update was pulled from the automatic update list due to it crashing non-thunderbolt systems such as old macbook pros. I haven't read a report of any problems for us macbook air users, and it works great on my 2011 macbook air. If you're lucky enough to have grabbed a copy of the update from apple's KB article before it was pulled from there as well, you should be able to use the adapter. Presumably apple will fix this big error in a day or so with a newer thunderbolt update.

If you know what you're doing, you could always backup your IONetworkingFamily kext before applying the update, and then restore just that kext it if your system crashes from the update.

Works but with terrible EMC interference

3.0 out of 5 stars

The adapter works as advertised and provides 1Gbps link speed. However, it virtually renders the nearby USB port unusable to me: L
The adapter works as advertised and provides 1Gbps link speed. However, it virtually renders the nearby USB port unusable to me: Logitech unifying receiver fails to establish a stable connection with the mouse, and even USB 3.0 portable disk disconnects from time to time. The same doesn't happen with other adapters such as the mini displayport to VGA/DVI adapters. The only workaround seems to be ceasing to use this adapter, or connect aforementioned USB devices only via the other port on the opposite side of the laptop.
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Written by Jie M from San Jose

Jul 27, 2015

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Works but with terrible EMC interference

Excellent - super fast file transfers ahoy!

5.0 out of 5 stars

Works perfectly for connecting to my Synology NAS when I need more bandwidth than the wifi allows.

Written by A T from Bromley

Jul 14, 2015

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Excellent - super fast file transfers ahoy!

Extremely Poor Design

1.0 out of 5 stars

Firstly, I should mention that I am forced to use this as the 2015 macbooks (retina) do not come equipped with an Ethernet port. F
Firstly, I should mention that I am forced to use this as the 2015 macbooks (retina) do not come equipped with an Ethernet port. For the price you pay, you'd think that some thought would have been put into designing this piece; here are some of the problems I've faced in using this:

It is extremely sensitive to popping out of your laptop. As the Thunderbolt ports are very small, any time you move your laptop while connected, it's probably an 80% chance that the wire will slide out if you're not aware and cautious.

Aside from the above, it still is prone to being lodged out due to the cube-like part of the adapter being caught on the edge of a table (for those who use their laptops on a table). All this is troubling when you prefer to maintain a steady connection to the internet.

And to top it all off, mine has suddenly stopped working as well.. makes you realise how the quality of Apple's products are truly racing down the hill.
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Best Answer:

The previous "yes" answer is correct, it does indeed work under Wndows 7 Bootcamp, but the answer is
The previous "yes" answer is correct, it does indeed work under Wndows 7 Bootcamp, but the answer is a bit light on detail for a couple of the steps. Here's a fuller explanation:

1) download the driver per the instructions in the previous answer
2) unzip the drivers to a temporary folder on your hard drive
3) connect the adaptor to the thunderbolt port
4) reboot Windows

Windows should automatically detect the adaptor now and install it. You may need to point the installer at the location where you unzipped the drivers.

If Windows doesn't automatically install the device...

1) go to Start > Control Panel > Hardware & Sound and open Device Manager
2) click the name of your computer at the top of the device tree
3) click Action at the top of the window and choose Add Legacy Hardware
4) Click Next
5) Select "Install hardware that I manually select..."
6) Choose Network Adaptors
7) Choose "Have Disk"
8) Browse to the location of the drivers you unzipped earlier.
9) Click the .inf file
10) Select Broadcom NetXtreme Gigabit Ethernet from the list of drivers available
11) OK and install

You may need to reboot again with the adaptor plugged into the Thunderbolt port to finish the job,
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Answer

If you are talking about a Macbook Pro, then yes because it has 2 thunderbolt ports on the left side
If you are talking about a Macbook Pro, then yes because it has 2 thunderbolt ports on the left side. If you mean just a Macbook, then no as you will need an adapter to connect from USB-C to gigabit ethernet.
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